/* 版心制作 */
.wrapper{
    width: 1200px;
    margin: 0 auto;
}

/* 浮动 */
.fl{
    float: left;
}
.fr{
    float: right;
}

/* 清除浮动 */
.clearfix::after{
    content: "";
    display: block;
    clear: both;
}

/* 额外标签法清除浮动 */
.clear{
    clear: both;
}

/* 测试边框 */
.test_border{
    border: 1px solid;
}

/* 头部 */
/* 头部top */
.header .top{
    height: 43px;
    background-color: #252525;
    border: 1px solid #2e2e2e;
    font-size: 12px;
    color: white;
    line-height: 43px;
}
.header .top ul li{
    float: left;
    margin-left: 20px;
}
.header .top ul li:last-child img{
    transform: translate(3px,-1px);
}
/* 头部的nav */
.header .nav{
    height: 103px;
}
.header .nav img{
    height: 50px;
    margin-top: 25px;
}
.header .nav ul li{
    float: left;
    height: 103px;
    line-height: 103px;
    margin: 0 30px;   
}
.header .nav ul li a{   
    font-size: 16px;
    color: #252525;  
}
.header .nav ul li:hover{
    background: url(../imgs/nav_bg02.png) repeat-x 0/32px;
}
/* 海报区域 */
.banner{  
    margin: 0 auto; 
    padding-top: 165px;
    width: 1920px;
    height: 550px;
    background: url(../imgs/banner1.jpg) no-repeat;   
    overflow: hidden;
    box-sizing: border-box;
}
/* 产品展示标题 */
.product_show_title{
    margin-bottom: 42px;
}

.product_show_title h2{
    height: 52px;
    font-size: 28px;
    color: #252525;
    background: url(../imgs/nav_bg02.png) no-repeat;   
    background-position: 0 -8px;
}
/* 页脚开始 */
.footer{
    color: #818388;
    padding-top: 60px;
    margin: 0 auto;
    height: 446px;
    background-color: #141414;
    box-sizing: border-box;
}
.footer .footer_left{
    font-size: 16px;
    color: #818388;
}
.footer .footer_left ul li i{
    display: inline-block;
    width: 26px;
    height: 25px;
    vertical-align: middle;
}
.footer .footer_left ul li{
    line-height: 42px;
}
.footer .footer_left ul li:nth-child(2) i{
    background: url(../imgs/icon.jpg) no-repeat;
    background-position: 5px 3px;
}
.footer .footer_left ul li:nth-child(3) i{
    background: url(../imgs/icon.jpg) no-repeat;
    background-position: 5px -40px;
}
.footer .footer_left ul li:nth-child(4) i{
    background: url(../imgs/icon.jpg) no-repeat;
    background-position: 3px -83px;
}
.footer .footer_left ul li:first-child{
    margin-bottom: 3px;
}
.footer h3{
    margin-bottom: 20px;
    font-size: 20px;
    height: 40px;
    color: white;
    background: url(../imgs/line_bg.png) no-repeat;
    background-position: 0 -6px;
}
.footer_middle{
    margin: 0 85px;
}
.footer_middle ul{
    width: 238px;
}
.footer_middle ul li{
    float: left;
    font-size: 14px;
    line-height: 43px;
}
.footer_middle ul li:nth-child(odd){
    margin-right: 94px;
}
.footer_right form{
    margin: 35px 0 30px 0;
}
.footer_right form input{
    outline: none;
    border: none;
    float: left;
}
.footer_right form input:first-child{
    width: 221px;
    height: 47px;
    background-color: #333333;
    text-indent: 2em;
}
.footer_right form input:last-child{
    width: 100px;
    height: 47px;
    background-color: #3aa27f;
    font-size: 16px;
    color: white;
}
.footer_right p{
    font-size: 16px;
}
.footer_right p i{
    display: inline-block;
    width: 31px;
    height: 31px;
    vertical-align: middle;
}
.footer p i:first-child{
    background: url(../imgs/fenxiang.png) no-repeat;
    background-position: 0 0;
}
.footer p i:last-child{
    background: url(../imgs/fenxiang.png) no-repeat;
    background-position: -43px 0;
}
.footer .copyright{
    text-align: center;
    margin: 76px auto;
    height: 76px;
    line-height: 76px;
    font-size: 12px;
    background-color: #000000;
}